Locking mechanism for control cabinet and base

Abstract

The utility model discloses a locking mechanism for a control cabinet and a base, which comprises the base formed by bending a metal plate and a spring bolt fixedly connected to the lower bottom of the control cabinet, the spring bolt is in the shape of a strip plate, two parallel wheel grooves are formed in the upper side of the base, a guide rail is welded in the middle of the upper side of the base, the guide rail is provided with a sliding groove, and the front end and the upper side of the sliding groove are open. The width of the sliding groove is larger than that of the rear end of the spring bolt, two transversely-penetrating fixing holes a are formed in the guide rail, two transversely-penetrating fixing holes b are formed in the spring bolt, the fixing holes a and the fixing holes b are aligned one by one when the spring bolt slides to the rearmost end of the guide rail, a handle is hinged to the side face of the guide rail, and a first spring is connected between the front portion of the handle and the side wall of the guide rail. Two bolts are welded to the inner side of the front portion of the handle, and the first spring exerts pulling force on the front portion of the handle so that the bolts can be inserted into the fixing holes a. Locking and fixing can be achieved by pushing the control cabinet backwards on the base, locking is unlocked by pulling the handle outwards, and operation is very convenient.

Description

Technical Field

[0001] This utility model relates to the field of emergency drainage vehicle technology, specifically a locking mechanism between a control cabinet and a base. Background Technology

[0002] Emergency drainage vehicles are specialized vehicles primarily used for urban flood control, municipal engineering, and emergency drainage. They integrate drainage equipment onto a Class II vehicle chassis, creating mobile pumping stations suitable for all-weather outdoor operations. These vehicles feature stable and reliable overall performance, convenient and practical integrated operation, and rapid response. The generator set and pumps on the emergency drainage vehicle are controlled by a control cabinet. During transport, the control cabinet is on the drainage vehicle. However, for ease of operation at the drainage site, the control cabinet is usually moved to the ground. Therefore, the control cabinet cannot be bolted to the vehicle. However, placing the control cabinet on the vehicle during transport makes it prone to tipping over. Currently, fasteners are generally used to connect the cabinet to the vehicle floor on both sides. However, these fasteners primarily provide vertical tension, resulting in poor lateral stability of the control cabinet, which may lead to slippage and tipping due to road bumps. Utility Model Content

[0003] The purpose of this utility model is to provide a locking mechanism between the control cabinet and the base to solve the problems mentioned in the background art.

[0004] To achieve the above objectives, this utility model provides the following technical solution: a locking mechanism for a control cabinet and a base, comprising a base formed by bending sheet metal and a locking tongue fixedly connected to the bottom of the control cabinet. The locking tongue is in the shape of a long strip. Two parallel wheel grooves are formed on the upper side of the base. A guide rail is welded to the middle of the upper side of the base. The guide rail has a sliding groove with an open front end and an open upper side. The width of the sliding groove is greater than the rear end of the locking tongue. The guide rail has two horizontally penetrating fixing holes a. The locking tongue has two horizontally penetrating fixing holes b. When the locking tongue slides to the rear end of the guide rail, fixing holes a and fixing holes b are aligned one by one. A handle is hinged to the side of the guide rail. A first spring is connected between the front part of the handle and the side wall of the guide rail. Two pins are welded to the inner side of the front part of the handle. The first spring applies a pulling force to the front part of the handle, causing the pins to insert into the fixing holes a.

[0005] Preferably, the front end of the guide rail is in an open V-shape to facilitate the insertion of the locking tongue from the front end.

[0006] Preferably, the side of the guide rail is provided with a rectangular plate, and four symmetrical guide posts are fixedly connected between the rectangular plate and the side wall of the guide rail. A U-shaped slider is slidably connected between the upper and lower rows of guide posts. The rear end of the slider is provided with a transverse insert. The rear end side of the guide rail is provided with an elongated hole along the length direction. The insert passes through the elongated hole and is slidably connected to it. The inner end of the insert extends to the slide groove. A second spring is connected between the rear end of the slider and the side wall of the guide rail. The second spring applies a forward pulling force to the slider so that the slider covers the front fixing hole a.

[0007] Preferably, the fixing hole a is an oblong hole along the length of the guide rail.

[0008] Compared with the prior art, the beneficial effects of this utility model are: when in use, the control cabinet is pushed into the base from the front, and the locking tongue slides into the slide groove from the front to the back. When it slides to the last end, the pin can be inserted into the fixing hole a and fixing hole b to achieve a firm lock on the control cabinet. The locking state of the pin can be released by flipping the handle outward, which is very convenient to operate. Attached Figure Description

[0009] Figure 1 This is a three-dimensional structural diagram of the present invention;

[0010] Figure 2 This is a schematic diagram of the slider's installation structure.

[0011] Figure 3 This is a top view of the structure of this utility model;

[0012] Figure 4 This is a schematic diagram showing the interaction between the present invention and the control cabinet.

[0013] In the diagram: 1. Base; 2. Wheel groove; 3. Guide rail; 4. Slide groove; 5. Handle; 6. Pin; 7. First spring; 8. Slider; 9. Second spring; 10. Rectangular plate; 11. Guide post; 12. Fixing hole a; 13. Locking tongue. Detailed Implementation

[0014] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments.

[0015] Please see Figure 1-4This utility model provides a technical solution: a locking mechanism between a control cabinet and a base, comprising a base 1 formed by bending sheet metal and a locking tongue 13 fixedly connected to the bottom of the control cabinet. The locking tongue 13 is in the shape of a long strip. Two parallel wheel grooves 2 are formed on the upper side of the base 1. The wheel grooves 2 are used to constrain and guide the universal wheels at the bottom of the control cabinet. Mounting holes are provided on both sides of the base 1. A guide rail 3 is welded to the upper middle part of the base 1. The front end of the guide rail 3 is open in a V-shape to facilitate the insertion of the locking tongue 13 from the front end.

[0016] The guide rail 3 has a sliding groove 4 that is open at the front end and the top. The width of the sliding groove 4 is greater than the rear end of the locking tongue 13. The guide rail 3 has two horizontally penetrating fixing holes a12, which are oval holes along the length of the guide rail 3. The locking tongue 13 has two horizontally penetrating fixing holes b, which are the same size as the fixing holes a12. When the locking tongue 13 slides to the rear end of the guide rail 3, the fixing holes a12 and b are aligned. A handle 5 is hinged to the side of the guide rail 3. A first spring 7 is connected between the front part of the handle 5 and the side wall of the guide rail 3. A pin 6 is welded to the inner side of the front part of the handle 5. The first spring 7 applies a pulling force to the front part of the handle 5, causing the pin 6 to be inserted into the fixing hole a12. When the pin 6 is inserted into the fixing hole b, the control cabinet is fixed.

[0017] A rectangular plate 10 is provided on the side of the guide rail 3. Four symmetrical guide posts 11 are fixedly connected between the rectangular plate 10 and the side wall of the guide rail 3. A U-shaped slider 8 is slidably connected between the upper and lower rows of guide posts 11. A horizontal insert is provided at the rear end of the slider 8. A long strip hole along the length direction is provided on the side of the rear end of the guide rail 3. The insert passes through the long strip hole and is slidably connected to it. The inner end of the insert extends to the slide groove 4. A second spring 9 is connected between the rear end of the slider 8 and the side wall of the guide rail 3. The second spring 9 applies a forward pulling force to the slider 8 so that the slider 8 covers the fixing hole a12. When the locking tongue 13 is not inserted into the rear end of the guide rail 3, the pin 6 is prevented from being inserted into the fixing hole a12 because the slider 8 blocks it.

[0018] Working principle: The base 1 is fixedly installed with the drainage cart. In use, the control cabinet is pushed from front to back. The casters roll backward along the wheel groove 2. The locking tongue 13 slides backward from the front of the guide rail 3 until it reaches the rear end. When it is close to the rear end, the locking tongue 13 abuts against the insert bar and pushes it backward (the second spring 9 is stretched). The slider 8 moves backward synchronously, so that the slider 8 releases its obstruction of the front fixing hole a12. The pin 6 is inserted into the fixing holes a12 and b to lock the locking tongue 13 and the control cabinet. Pressing the tail of the handle 5 to make it flip outward will allow the pin 6 to be pulled out from the fixing holes a12 and a, releasing the locking state, so that the control cabinet can be pulled forward.

[0019] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A locking mechanism for a control cabinet and a base, comprising a base (1) formed by bending sheet metal and a locking tongue (13) fixedly connected to the bottom of the control cabinet, the locking tongue (13) being a long strip, and two parallel wheel grooves (2) formed on the upper side of the base (1), characterized in that: A guide rail (3) is welded to the upper middle part of the base (1). The guide rail (3) has a sliding groove (4) with an open front end and an open upper side. The width of the sliding groove (4) is greater than the rear end of the latch (13). The guide rail (3) has two horizontally penetrating fixing holes a (12). The latch (13) has two horizontally penetrating fixing holes b. When the latch (13) slides to the rear end of the guide rail (3), the fixing holes a (12) and b are aligned one by one. A handle (5) is hinged to the side of the guide rail (3). A first spring (7) is connected between the front part of the handle (5) and the side wall of the guide rail (3). Two pins (6) are welded to the inner side of the front part of the handle (5). The first spring (7) applies a pulling force to the front part of the handle (5) so that the pins (6) are inserted into the fixing holes a (12).

2. The locking mechanism between the control cabinet and the base according to claim 1, characterized in that: The front end of the guide rail (3) is open in a figure-eight shape to facilitate the insertion of the locking tongue (13) from the front end.

3. The locking mechanism between the control cabinet and the base according to claim 2, characterized in that: The guide rail (3) has a rectangular plate (10) on its side. Four symmetrical guide posts (11) are fixedly connected between the rectangular plate (10) and the side wall of the guide rail (3). A U-shaped slider (8) is slidably connected between the upper and lower rows of guide posts (11). The rear end of the slider (8) is provided with a transverse insert. The rear end side of the guide rail (3) is provided with a long strip hole along the length direction. The insert passes through the long strip hole and is slidably connected to it. The inner end of the insert extends to the slide groove (4). A second spring (9) is connected between the rear end of the slider (8) and the side wall of the guide rail (3). The second spring (9) applies a forward pulling force to the slider (8) so that the slider (8) covers the front fixing hole a (12).

4. The locking mechanism between the control cabinet and the base according to claim 3, characterized in that: The fixing hole a (12) is an oval hole along the length of the guide rail (3).

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